Influence of the dynamic ergodic divertor on the density limit in TEXTOR.
نویسندگان
چکیده
A significant influence of the dynamic ergodic divertor (DED) on the density limit in TEXTOR has been found. In Ohmic discharges, where without DED detachment normally arises at the density limit, a MARFE (multifaceted asymmetric radiation from the edge) develops when the DED is operated in a static regime. The threshold of the MARFE onset in the neutral beam heated plasmas is increased by applying 1 kHz ac DED at the high-field side. The theoretical predictions based on the parallel energy balance taking poloidal asymmetries into account agree well with the experimental observation.
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عنوان ژورنال:
- Physical review letters
دوره 94 10 شماره
صفحات -
تاریخ انتشار 2005